Amateur Radio Station K9DUR
Continuously Licensed Since 1960
K9DUR VoiceKeyer
(Version 5.4.0)

TThe K9DUR VoiceKeyer was specifically written to interface to PowerSDR(TM) via Virtual Audio Cable (VAC), or to SmartSDR(TM) via DAX. PowerSDR is the program used with the older Flex-Radio Systems line of software-defined transceivers, and VAC is a 3rd party software driver that creates pairs of virtual audio cables. SmartSDR is the software used with the Signature series (FLEX-6xxx) of transceivers using DAX (VAC is not required).

VoiceKeyer allows you to select which soundcard installed on your PC to use for sending messages. Many other digital voice keyer programs only use the Windows default sound card. /span>

Although it was written for PowerSDR w/VAC or SmartSDR w/DAX, VoiceKeyer is a general-purpose digital voice keyer program which can be used with any amateur radio transceiver by using the PC's sound card and a hardware interface to the rig.

Operating System Requirements:  VoiceKeyer has been tested on systems running:
  • Microsoft Windows Vista (32-bit), or Windows 7, 8, or 10 (32-bit & 64-bit)
VoiceKeyer may work, but is not supported on, operating systems not listed above.
Download the installation package (Approximately 2.9 Mb)
Download the User Manual (Adobe Acrobat Format)
TIP:  You can use the built-in record features in PowerSDR to record the necessary .wav files. The raw files normally need to be edited (trimmed to length, etc.) before they can be used.  I have found that the free utility Audacity is easy to use & works very well.

Last Update:
September 8, 2019
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